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Screenshot API - Viewport Screenshot Capture
x402
Screenshot API - Viewport Screenshot Capture is a paid API for AI agents from screenshot-api-production-fe7e.up.railway.app, paid per call via x402, $0.002/call, status unknown (last checked 2026-09-14).
Captures a viewport-sized PNG screenshot of any public HTTP/HTTPS URL using headless Chromium and returns the image as a base64-encoded JSON envelope with metadata.
Price / call$0.002
Success—
StatusUnknown
How this service works
Capture a viewport-sized PNG screenshot of an http(s) URL with headless Chromium; returns a JSON envelope with the PNG base64-encoded under image_base64, plus final_url, title, viewport, and size.
Output
A JSON object containing: `image_base64` (PNG screenshot encoded as base64), `final_url` (the URL after any redirects), `title` (the page title), `viewport` (object with width and height used), and `size` (byte size of the PNG). The image can be decoded and used directly as a PNG file.
Example use cases
Visual regression monitoring for web apps
“Take a screenshot of https://staging.myapp.com at 1280x800, waiting for networkidle, so I can compare it to what the production site looks like.”
Archiving a competitor's landing page
“Capture a viewport screenshot of https://www.competitor.com at 1920x1080 — I want a visual record of what their homepage looks like today.”
Generating preview thumbnails for a link aggregator
“Screenshot https://techcrunch.com at 1280x800 using networkidle so I can use it as a preview card image in my newsletter.”
Technical details
Endpoint
POSThttps://screenshot-api-production-fe7e.up.railway.app/capture/screenshotWhen to prefer
Choose this endpoint when you need a standard viewport-sized screenshot (what a user would see above the fold in a browser window) at a specific resolution. It is ideal for generating preview thumbnails, visual QA checks, link previews, or archiving web content at a defined viewport. Use the sibling full-page endpoint instead if you need the entire scrollable page captured; use the element screenshot endpoint if you only need a specific CSS-selected component.
Side effects
- Internal or loopback hosts (e.g. localhost, 192.168.x.x) are rejected with an error
- Invalid or malformed URLs return a validation error
- Pages that timeout before reaching the specified load state may return a partial capture or error
- Very large pages or high-resolution viewports may produce large base64 payloads
- Pages requiring authentication will capture the login screen rather than the authenticated content
- Invalid wait_until values outside the accepted enum will cause a parameter error
Input
Schema · Request body
| Field | Type | Description |
|---|---|---|
| url | string | The http(s) URL to capture, e.g. 'https://example.com'. Internal/loopback hosts are rejected. |
| width | integer | Viewport width in pixels (320-3840). Defaults to 1280. |
| height | integer | Viewport height in pixels (240-3840). Defaults to 800. |
| wait_until | string | Playwright load state to wait for before capture: 'load', 'domcontentloaded', 'networkidle', or 'commit'. Defaults to 'networkidle'. |
Tags
x402
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